Insulated support for inductance-coils



L. STEINBERGER AND G. HILL.

INSULATED SUPPORT FOR INDUCTANCE COILS. APPLICATION FILED MAYIB, 1918.

1,342,308. Patented June 1, 1920.

2 SHEETS-SHEET 1.

IN VE/VTOI? 5 L. STEINBERGER AND G. HILL.

INSULATED SUPPORT FOR INDUCTANCE cons. APPLICATION FILED MAY 18, 19MB.1,342,308, Patented June 1, 1920.

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E IAN w jig AT? NEY LOUIS STEINBERGER AND GUY HILL, OF BROOKLYN, NEWYORK.

INSULATED SUPPORT FOR INDUCTANCE-COILS.

Specification of Letters Patent.

Patented June 1, 1920.

Original application fileil August 9, 1917, Serial No. 185,370. Dividedand this application filed May 18, 1918. Serial No. 235,335.

of New York, have jointly invented certain new and useful Improvementsin Insulated Supports for Inductance-Coils, of whlch the following is aspecification.

Our invention relates particularly to in-,

sulated supports for mounting inductance coils in radio apparatus.

One of the objects of our inventlon 1s to so mount the conductor formingthe 0011 that it is entirely exposed to the air except at those placeswhere it is in metallic contact with the supporting posts or studs.

Another object is to mount the conductor in such a manner as to permitit to radiate heat to a maximum degree, thereby providing for rapid selfcooling of the conductor.

Another object is toso mount the coils as to produce both a maximumelectrical efiiciency and at the same time mechanical strength.

Another object is to so construct the mounting that the coil may beconveniently put in place and thereby permit of various provide greatmethods of mounting.

Another object is to so construct the coil and mounting therefor as to,perm1t of a maximum ventilation and -mechan1cal strength, and to alsoassemble the parts that they may be easily reached for repair and at thesame time guard against the loss of electrical efliciency.

Another object is to so construct the coil mounting and coil windingthat the complete structure is mechanically strong and those that are inelectrical contact with the conductor formingthe coil so that brushingto isolated metal screwsland parts will be prevented. 7

Other objects will appear hereinafter in the specification and claims.

This application is a division of our prior applicption Serial No.185,370, filed August 9 191 Referring to the drawings, in which similarcharacters indicate the same parts in the several views:

Figure 1 is an elevation of a structure for holding the inductance coilof helical form in a vertical position.

Fig. 2 is a horizontal section on line 22 of Fig. 1.

Fig. 3 is an elevationof a modified construction of securingthe helicalinductance coil in vertical position.

Fig. 1 is a horizontal section on line 44 of Fig. 3.

Fig. 5 is a section of'an insulating supporting rod showing the pinssecured there to projecting in diametrically opposite directions instaggered relation to each other. Fig. 6 is a section of supporting rodshow- 1ng pins projecting therethrough with the exposed portionsopposite each other.

Fig. 7 is a horizontal section similar to Figs. 2 and 3 showing twohelical coils, one being mounted interiorly of a skeleton supportlngframe, and the other being mounted exteriorly of the skeleton supportlngframe, the pin supports being arranged as illustrated in either Figs. 5or 6.

Referring to Figs. 1 and 2, we show a frame work consisting of a base 90supporting a series of insulating rods 91 arranged in a verticalposition, the free upper ends are secured in any suitable way by a cap92. Metallic studs30 project inwardly and radially from the insulatingrods, the bases of the studs being molded to the rods as shown,

and they are so arranged with each other that a helical coil 93,consisting of a metal strip, may be wound and mounted internally of thestructure with respect to the supporting rods, as shown.

In Figs. 3 and 4, we have shown a structure similar to. that which hasjust been described with the exception that the metallic studs 30 aremolded to the rods 91 and project radially outward from the saidinrespect to sulating supporting rods 91 so that the helical coil 93 maybe wound and secured to the projecting metal studs 30 exteriorly of thesupporting framework.

In both of the structures just described,

slots 95 are formed at the ends of themetallic pins of such shape as toreceive snugly the edge of'the helical coil.

In Fig. 7 we have shown a skeleton framework of insulating rods 91,supported by a base 90 in a similar manner to the construction shown inFigs. 1 and 3. The insulating rods 91 are mounted upright upon the baseand are provided with pins or studs 30 molded thereto which projectbeyond diametrically opposite sides of said uprights. These pins orstuds support the helical coils 93 and 93 these coils being mountedrespectively on the exterior and interior of the skeleton frame formedby the uprights 91.

In all of the structures above described, the metallic coils can be madein the form of a wire of any cross section, or in the form of a ribbonor tape, which is the preferred form.

In Figs. 5 and 6 we have shown respectively an arrangement of metallicstuds 30 and 30 molded on the insulating supporting rods which can beused for mounting a helical metallic coil upon the rods. As shown inthese figures, the metallic studs are arranged to project in oppositedirections but they are insulated from each other so that two coils canbe mounted upon one support. These constructions are of advantage inthose cases where a fixed coupling is desired or a maximum inductance isrequired in a small space.

In Fig. 5 we have shown the metal studs 30 arranged in staggeredrelation to each other and in Fig. 6 the projecting ends of the studsare opposite to each other, and we have found that a convenient way tomount the metal studs 30 in such a construction is to provide a stud 30which is longer than the thickness of the support and which penetratesthe support so that the exposed ends project on both sides thereof. Whenthe metallic studs project through the insulating support, the twoconducting coils which are wound and supported therebetween, one on eachside of the support, are arranged in parallel so as to provide forgreater current carrying capacity. The metallic coils in each instanceare permanently secured to the projecting studs by solder or any othersuitable securing means.

In constructing our invention we may use any suitable insulatingmaterial, but we have found that it is preferable to use that insulatingmaterial which is known in the art as electrose.

Having now described our invention what we claim as new and desire tosecure by Letters Patent is:

1. In a device of the class described, a support of insulating material,metallic studs having coil carrying ends, each having a supporting endmolded in said support and the coil carrying end projecting beyond thesurface of said support, the plns being ar-' ranged in staggeredrelation, and projecting from opposite surfaces of said support.

2. In a device of the class described, a supporting structure, rods ofinsulating material carried thereby, coil carrying studs carried by saidrods, and a helical conductor carried by said studs.

3. In' a device of the class described, a supporting structure, aplurality of rods carried by said structure and arranged equidistantfrom a common locus, supporting studs carried by said rods and projecting in lines extending radially from said locus and a helical coilcarried by said pins.

4. In a device of the class described, a supporting structure, aplurality of rods carried by said structure and arranged at equal radialdistances from a central point, a plurality of supporting studs carriedby said rods and projecting radially in a plane extending through avertical line containing said point, said studs on adjacent rods beingspaced in helical progression, and a helical inductance coil carried bysaid studs.

5. In a device of the class described, a supporting structure, aplurality of rods carried b said structure and arranged at equal radialdistances from a central point, a plurality of supporting studs carriedby said rods and projecting radially away from a vertical linecontaining said point, said studs on adjacent rods being spaced inhelical progression, and a helical inductance coil carried by saidstuds.

6. In a device of the class described, a

supporting structure, a plurality of rods of insulating materialsustained by said supporting structure, coil supporting studs carried bysaid rods, and a helical conductor carried by said studs.

7. In a device of the class described, a supporting structure, aplurality of rods of insulating material sustained thereby, said rodsbeing located at equal radial distances from a given center line, aplurality of coil supporting studs carried by said rods projectingradially in lines extending through said center line, and a helicalconductor supported by said studs.

8. In a deviceof the class described, a supporting structure, aplurality of rods of insulating material sustained thereby, said .radialdistances from a center line, a plurality of studs projecting radiallyfrom said rods through said center line, said studs being spacedlongitudinally along said rods to accommodate a helical conductor, and ahelical conductor carried by said studs.

10. In a device of the class described, a supporting structure, aplurality of rods of insulating material sustained thereby at and ahelical conductor carried by said studs.

11. In a device of the class described, a

skeleton supporting structure comprising a base, a cap and a pluralityof insulating rods rigidly connecting said cap and base, a helicalconductor, means carried by said insulating rods for supporting thehelical conductor on the exterior of said skeleton sup portingstructure. I

12. In a device of the class described, a skeleton supporting structurecomprising a base, a cap and a plurality of insulating rods, metallicstuds molded in said rods for supporting said helical conductor on theexterior of said structure.

13. Ina device of the kind described,*an

insulating support and a plurality of oppositely disposed independentlymounted helical conductors carried thereby.

14. In a device of the kind described, an insulating skeleton supportprovided with outer and inner sides and helical conductors carriedrespectivel upon the outer and the inner sides thereo 15. In a device'ofthe kind described, a skeleton support of insulating material providedwith an outer and inner side, a series or set of'metallic studsprojecting from each.

of said sides, anda conducting coil secured to each set of studs, onecoil on each side of said skeleton support.

In witness whereof we have hereunto set our hands at the borough ofManhattan, city and State of New York, this eighth day of May, 1918.

LOUIS STEINBERGER.

GUY HILL. In presence of-- JOHN J. RANAGAN, ZITA M. GRAHAM.

